Air Quality in Ōmachi, Japan
Rain
20.6°C · 92.3% humidity
20.6°
Feels 20.6°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Ōmachi's air quality — share it
AQI Forecast
27
6am
27
27
15
9am
16
19
21
12pm
22
23
23
3pm
24
24
26
6pm
27
27
34
9pm
54
54
54
12am
54
54
34
3am
34
34
Air Quality Index Trend
42h · 2 stnŌmachi's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions.
92.3%
Humidity
24.2 km/h
Wind SE
1003.4 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.6 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Ōmachi?
Temperature & Precipitation
PM2.5 Trend
42h · 2 stationsPM2.53.6 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
Station readings (1 station within 25 km)
3.6
Median
3.6
Average
3.6
Low
3.6
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +2.7
What is the 7-day forecast for Ōmachi?
07-22
23.7° 16.2°
13.62 mm
07-23
20.5° 10.4°
7.25 mm
07-24
19.0° 16.9°
6.31 mm
07-25
21.3° 14.3°
19.5 mm
07-26
24.5° 15.9°
1.69 mm
07-27
22.7° 14.5°
6.0 mm
07-28
21.9° 15.6°
9.69 mm
Both models agree
Avg diff: 3.9°C
Where are air quality stations near Ōmachi?
78
Hokujo, Nagano Prefecture, Japan (国設八方尾根酸性雨北安曇郡白馬村)
22
Hokujo, Nagano Prefecture, Japan (国設八方尾根酸性雨北安曇郡白馬村)
6
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
50
Shinonoifusetakada, Nagano, Nagano Prefecture, Japan (篠ノ井長野市)
What cities are near Ōmachi?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-22T00:21 UTC.